Effect of vitamin E on oxidative stress level in blood, synovial fluid, and synovial tissue in severe knee osteoarthritis: a randomized controlled study

Table 6 Correlation analysis of the differences between preintervention and postintervention (Delta, Δ) of oxidative stresses, antioxidative capacity and clinical outcomes in the serum samples of group B

		Δ WOMAC	Δ KSS	Δ MDA	Δ TEAC	Δ Vit E	Δ Nitrite
Δ WOMAC	C*	1	−0.08	0.31	−0.40	−0.09	−0.02
Δ WOMAC	P**	-	0.69	0.09	0.03*	0.62	0.91
Δ KSS	C*	−0.08	1	−0.16	0.21	−0.10	−0.17
Δ KSS	P**	0.69	-	0.40	0.26	0.96	0.35
Δ MDA	C*	0.31	−0.16	1	−0.38	−0.22	−0.03
Δ MDA	P**	0.09	0.40	-	0.04*	0.24	0.89
Δ TEAC	C*	−0.40	0.21	−0.38	1	0.10	0.25
Δ TEAC	P**	0.03	0.26	0.04	-	0.58	0.18
Δ Vit. E	C*	−0.09	−0.10	−2.2	0.10	1	0.09
Δ Vit. E	P**	0.62	0.96	0.24	0.58	-	0.61
Δ Nitrite	C*	−0.02	−0.17	−0.03	0.25	0.09	1
Δ Nitrite	P**	0.91	0.35	0.89	0.18	0.61	-

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